6 of 7
BACKNEXT
Sean Klimczak
Sean Klimczak
Principal, private equity group
Age: 34

Klimczak, who graduated at the top of his class at Harvard Business School, could have written his ticket to almost any Wall Street firm. His decision to go to Blackstone was turned into a case study on how to make employment decisions. Now he specializes in energy deals and helps the firm recruit the best and the brightest. "They identify the same opportunity that I did when I came out of HBS," he says. "It is the expectation, rather than the hope, that we take on significant responsibility at a very young age." To wit: Klimczak sits on a total of eight boards, which he describes as a unique and humbling experience.



NEXT: Julia Kahr
Last updated October 15 2010: 2:41 PM ET
Full List: Top 40 Meet this year's class of youthful movers and shakers. They're innovating, they're expanding, and they're not really thinking about the recession. More
40 under 40 cut looseWhere can you find these ambitious ones when they are not in the spotlight? Photographer Jeff Minton captured a selection of this year's 40 under 40 in their natural habitats. More
Where is the economy heading? This year's innovators offer their economic predictions for the next few years and beyond. More

Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer. Morningstar: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. All rights reserved. Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor's Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2018 and/or its affiliates.